I am having Yet Another Regular Expression problem, but this one might not be my fault, or at least it might not be obviously my fault. :-)


exten => 2212,1,SetVar(FOO=123456**) exten => 2212,2,SetVar(BAR=$[${FOO:-1:1} = *])

This script continues with a value of 0 in BAR.

Similarly, none of the following changes made a difference in that result, which is expected since the * is not listed in README.variables as a character that must be escaped:

exten => 2212,2,SetVar(BAR=$[${FOO:-1:1} = "*"])
exten => 2212,2,SetVar(BAR=$[${FOO:-1:1} = "\*"])
exten => 2212,2,SetVar(BAR=$[${FOO:-1:1} = \*])

I have also tried setting the variable ${BAZ}=* and then using that in my comparison, with the same unexpected results.

Oddly enough, this almost-identical example below has different, but "normal", results: BAR=1

exten => 2212,1,SetVar(FOO=123456##)
exten => 2212,2,SetVar(BAR=$[${FOO:-1:1} = #])


What gives? Am I colliding with a problem that is the result of the "*" character being used in expr evaluations and somehow not being handled correctly, or am I simply not implementing the syntax correctly?


JT
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